DCA24LA130

NTSB accident investigation · Boeing 737-800 · Paris, TN · March 15, 2024

Accident · Serious injuriesClass 4 · LimitedFinal report
Date
March 14, 2024, 23:00 local (Mar 15, 2024, 04:00 UTC)
Place
Paris, TN
Injuries
1 serious, 117 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N8520QBoeing 737-800
Defining event
Enroute-cruise: Turbulence encounter
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Major Investigations Division
Parties
FAA
Case key
193963

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

An encounter with convective turbulence.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Turbulence: convective turbulenceEnvironmental issues › Conditions/weather/phenomena · Effect on personnelBoeing 737-800: 1 caseAll aircraft: 145 cases
Turbulence: convective turbulenceEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeBoeing 737-800: 1 caseAll aircraft: 145 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

A flight attendant (FA) sustained a serious injury on Southwest Airlines flight 5797 when it encountered turbulence during cruise flight while enroute to Charleston International Airport (CHS), Charleston, South Carolina. Southwest Airlines reported that their flight attendant jumpseat positions are as follows on the 737-800 aircraft: the “A” and “C” FA’s are positioned in the forward galley and the “B” and “D” FA’s are positioned in the aft galley. The flight crew reported that before the flight, the captain briefed the two forward galley position FAs to expect a “rough” ride after departure on the initial climb and that if smooth air was encountered it would not last long. He also informed them of a line of convective weather that they would need to deviate through, and that they should expect turbulence until they were well clear of that weather. Although the captain was not able to meet with the two aft galley FAs before departure, he was assured that the preflight briefing would be relayed to them. The flight crew reported that the climb and initial cruise flight was turbulent; however, they briefly experienced a smooth ride for about 20 minutes before the flight was expected to encounter another area of turbulence. The captain stated that he had notified the FA’s that if they got up, he wanted them in their seats at least five minutes before the expected turbulence and provided a specific time for them to be seated. After the brief smooth ride, the flight experienced the expected continuous light to moderate turbulence as the flight crew navigated through a line of convective weather. The turbulence persisted longer than initially anticipated, so the captain called the FA’s to advise them to expect continued turbulence. At this time, the captain was informed that the “D” position FA had injured herself by splashing a pot of coffee onto her head, face, and shoulders. The “B” position FA reported that the captain had notified the FA’s that the flight might encounter turbulence and to remain seated if the rough air materialized. Due to the smooth air encountered during the initial cruise portion of the flight, the FA’s were able to quickly complete a passenger service and be reseated. The “B” position FA recalled that the captain had asked the FA’s to take their seats before the second area of turbulence was encountered. The “D” position FA reported that she brewed a fresh pot of hot coffee for the passengers. After brewing the coffee, she picked up the coffee pot by its handle to pour a cup. However, at that moment, the aircraft encountered turbulence, causing the coffee pot to strike a handle near the coffee machine. As a result, hot coffee splashed on her. Upon being notified of the injury, the captain messaged dispatch via the aircraft communications addressing and reporting system and coordinated to have medical personnel meet the airplane upon arrival at the gate. The aircraft was met by paramedics who immediately transported theinjured FA to a hospital where she was diagnosed with second degree burns.

Aircraft

Registration
N8520Q
Reported as
Boeing 737-800
Category
Airplane
Serial number
42532
Built
2017
Airframe hours
24,060
Engines
CFM Intl CFM56-7B27E/F, 27,300 lbs thrust, turbo fanCFM Intl CFM56-7B27E/F, 27,300 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Operator
Southwest Airlines Co
Registered owner
Southwest Airlines Co
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · March 8, 2024
Departed
KMDW · Chicago, IL
Destination
KCHS · Charleston, SC
Flight plan
IFR
Equipment
Angle of attack indicator, Data recorder, Electronic multifunction display, Electronic primary flight display, Heads up display, Auto-pilot, Onboard weather, Stall warning system, ADS-B

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 3

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
47
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Waiver time limited special
Last flight review
March 3, 2024
Seat
Left
Restraint
5-point
Flight hours
15,579 total · 7,693 in this make and model · 3,636 as pilot in command · 177 in the last 90 days · 76 in the last 30 days · 9 in the last 24 hours
Role
Co-pilot
Age
35
Injuries
None
Certificates
Airline transport, Military
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
June 21, 2023
Seat
Right
Restraint
5-point
Flight hours
3,500 total · 350 in this make and model · 1,800 as pilot in command · 73 in the last 90 days · 36 in the last 30 days · 0 in the last 24 hours
Role
Cabin crew
Injuries
Serious
Restraint
None

Weather

Conditions
Instrument (IMC) · Day

Docket · 2

The files NTSB released with the investigation on July 19, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 MB in all.